Fastening for m eeting-rails of sashes



(No Model.)

T.L.Mo-KEEN.

FASTENING FOR MEETING RAILS 0P SASHES. No. 316,285. PatentedApr. 21', 1885.

IIII n IN VBNTOR.

ATTORNEY UNITED STATES PATENT Qrrica.

THOMAS L. MOKEEN, OF E ASTON, PENNSYLVANIA.

FASTENING FOR MEETING-RAILS OF SASHES.

SPECIFICATION forming part of Letters Patent No. 316,285, dated April 21, 1885.

Application filed January 8,1885. (No model.)

' this specification, and in which Figures 1 and 2 are longitudinal vertical sectional views of my improved sash-lock, showing it locked and unlocked; and Figs. 3 and 4 are perspective views of the two main parts of the lock separated.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to locks for the meeting-rails of window-sashes; and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates a box or casing having flanges B, provided with perforations for the insertion of fastening-screws, securing the box to the upper rail of the lower sash of a window, and a bolt, 0, slides in the box, having a spiral spring, D, inserted with one end into a recess in the inner end of theboltand bearing against the inner end of the box.

A knob, E, has a screw-threaded shank, F, which fits into a threaded bore, G, in the upper side of the bolt, and the said shank slides in a longitudinal slot, H, in the upper side of the box, the knob serving as a handle for operating the bolt.

The under side of the bolt is cut away at the outer portion, forming an outwardly facing shoulder, I, and the box has a recess, J, in its lower side near the outer end, in which'recess a latch-plate, K, is pivoted at its middle, having a spring, L, forcing its inner end upward to engage the shoulder of the bolt.

A socket, M, having perforated flanges N,

is securedby the said flanges to the lower rail of the upper sash, and is adapted to receive the end of the bolt, and below the aperture of the socket for the reception of the bolt is a narrow slot, 0, into which passes the bent end of a spring, P, which is secured to therail of the sash below the socket, and has its upper end curved and bent to fit and play in the slot 0.

It will now be seen that when the rails of the sashes are opposite to each other, and,

consequently, the windows closed, the bolt will fit in the socket and the sashes be locked in position; but by drawing the bolt back by means of the knob the latch-plate will be tilted up with its inner end and engage the shoulder upon the bolt, retaining the bolt within the box, thus allowing the sashes to be moved. 'When now the rails are brought opposite to each other, by bringing the sashes back into their proper positions, the end of the latch-plate which projects outside of the box will strike the curved portion of the spring, which will raise the outer end of the latch-plate, and consequently disengage its inner end from the shoulder of the bolt,which thus will be allowed to slide out, being forced by the spiral spring, and lock the sashes agaln.

If it is desired to keep the bolt within the box without relying upon thelatch-plate to retain it, the knob maybe screwed down with its shank into the bore in the bolt, and the shoulder of the knob will clamp the edges of and desire to secure by Letters Patent of the United States-' The combination, in a sash-lock,of a slotted box secured to the upper rail of the lower sash, a bolt or locking-pin havingalongitudinal aperture, a coiled spring fitting in said In testimony that I claim the foregoing as aperture, a binding knob having a screwmy own I have hereunto affixed my signature thread fitting in said bolt, 2. pivoted latchin presence of two Witnesses.

plate, a. socket with a slot under its aperture,

and a flat spring with a rounded projecting THOMAS L. MOKEEN. part at its angle, its free end playing in said slot, and its other end secured to the lower Witnesses:

rail of the upper sash, all constructed and WM. H. HULIOK,

combined for the purpose herein set forth and S. S. FIsLER.

10 described. 

